AK1542A Datasheet, PDF (25/37 Pages) Asahi Kasei Microsystems – 20 to 600MHz Integer-N Frequency Synthesizer

[AK1542A]
FAST[12:0] : FAST counter value
A decimal number from 1 to 8191 can be set. This value determines the time period during which the
CP2 is ON for the Fast Lock Up mode.
After the time period calculated by [phase detector frequency cycle × {FAST[12:0]} setting], the CP2 is
turned OFF.
0 could not be set.
D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Function
0000000000000
0
0000000000001
1 Dec
0000000000010
2 Dec
Remarks
Prohibited
DATA
1 1 1 1 1 1 1 1 1 1 1 0 1 8189 Dec
1 1 1 1 1 1 1 1 1 1 1 1 0 8190 Dec
1 1 1 1 1 1 1 1 1 1 1 1 1 8191 Dec
MS1399-E-00
- 25 -
2012/3